Question

ACUM PLSSS SvEpS Cu mA tA​

Answer 1

a = [(1/3 + 1/4)² : (1/3 - 1/4)²]

a = [(4/12+3/12)² : (4/12 - 3/12)²]

a = [(7/12)² : (1/12)²]

a = [49/144 : 1/144]

a = [ 49/144 • 144/1]

a = 49

b = (4/12 + 3/12): (4/12 - 3/12) + (4/12 - 3/12) : (4/12 + 3/12)

b = 7/12 : 1/12 + 1/12 : 7/12

b = 7/12 • 12/1 + 1/12 • 12/7

b = 7 + 7

b = 14

2 • a/b = 2 • 49/14 = 98/14 = 7